Fix softconnect compilation issue that slipped by

Signed-off-by: Philippe De Swert <philippe.deswert@jollamobile.com>

src/usb_moded-modules.c

@@ -118,6 +118,7 @@ int usb_moded_load_module(const char *module)
 int usb_moded_unload_module(const char *module)
 {
 	int ret = 0;
+	const char * softconnect;
 
 #ifdef NO_KMOD
 	gchar *command;